Sounds like a bug .......you should report that to support to get it fixed. In the meantime you could enter a description that is long enough to cause the $fs=timestamp to roll off of the visual display.
The attachments map is a map of document objects. How were the document objects created in the first place. Each document has attributes that describe the contents of the document. The ones you are interested in are prefixed by ws. I believe that the one you want is wsdescription.